Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 7 9.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 07/21/2023   08:07:29   (  74.56,  45.53) 07/21/2023   08:06:20  (  74.53,  43.52)   59.44                69
 07/21/2023   08:58:21   ( -74.92,-148.16) 07/21/2023   08:57:09  ( -74.90,-148.14)    2.80                72
 07/21/2023   09:49:06   (  74.91,  19.20) 07/21/2023   09:48:11  (  74.91,  19.12)    2.32                55
 07/21/2023   10:39:51   ( -74.93,-173.56) 07/21/2023   10:39:07  ( -74.95,-173.50)    2.21                44
 07/21/2023   11:30:37   (  74.96,  -6.33) 07/21/2023   11:30:09  (  74.95,  -6.23)    2.94                28
 07/21/2023   12:21:21   ( -74.94, 161.05) 07/21/2023   12:21:06  ( -74.94, 161.01)    1.27                15
 07/21/2023   13:12:07   (  74.97, -31.73) 07/21/2023   13:12:08  (  74.95, -31.73)    1.98                 1
 07/21/2023   14:02:52   ( -75.00, 135.51) 07/21/2023   14:03:04  ( -74.99, 135.65)    3.99                12
 07/21/2023   14:53:37   (  74.98, -57.12) 07/21/2023   14:54:06  (  75.00, -57.09)    2.43                29
 07/21/2023   15:44:22   ( -75.00, 110.12) 07/21/2023   15:45:03  ( -74.99, 110.16)    1.93                41
 07/21/2023   16:35:07   (  74.99, -82.52) 07/21/2023   16:36:05  (  75.00, -82.58)    2.13                58
 07/21/2023   17:25:52   ( -75.01,  84.72) 07/21/2023   17:27:02  ( -74.99,  84.66)    3.08                70
 07/21/2023   18:16:47   (  75.47,-109.33) 07/21/2023   18:17:54  (  75.46,-106.62)   75.65                67